Fastening device.



P. A. FREEMAN. PASTENING DEVICE.

APPLICATION FILED PEB. 9. 1905.

PATENTED JAN. 30, 1906.

UNITED sTiiTns iafaTnnT orricn.

FASTENlNC- DEVICE.

ivo. 811,494.

Original application filed April l, 1904, Serial No. 201,063. Dividedand this application filed February 9, 1905.

To all whom it may concern.:

Beit known that l, FRANK A. FREEMAN, a citizen of the United States,residing at Philadelphia, in the county of Philadelphia and State ofPennsylvania, have invented a new and useful Fastening Device, of whichthe following is a specification.

My invention relates to fastening devices, said devices being especiallyadapted for use in connection with hose-supporters.

The object of my invention is to afford neat, simple, and efficientfastening means the cooperating parts or members of which shall bereadily and surely brought into the operative position of engagement andso that the same shall be safely maintained iii said coperative positionuntil manually operated.

It is also my object to provide such a device which shall lie flat andsmooth when in the operative position.

This application is a division of my application led April 1, 1904,having Serial No. 201,063, upon which was issued Patent No.

- 789,723, dated May ie, i905.

I accomplish my object by the mechanism illustrated in the accompanyingdrawings, in which- Figure 1 is a plan view of my two coperating membersin the preliminary position of engagement. Fig. 2 is a similar view ofsaid two members in the final position of engagement. Fig. 3 is across-section on line 3 3 of Fig. 1. Fig. 4 is a cross-section on line 44 of Fig. 2. Fig. 5 is a plan view showing a modification in form oflocking projection. Fig. 6 is a similar view showing a furthermodification of the locking projection. Fig. 7 is a crosssection on line7 7 of Fig. 2.

Similar characters refer to similar parts throughout the several views.

The member A is in the form of a flat piece provided with slots 1 forengaging the web or garter to which it is attached. The segm ental lips2 are struck up slightly from said member A and are oppositely disposedand symmetrical with respect to each other. The lines intersecting thetwo ends of the arcshaped margins of these lips 2 are slightlyconvergent, as indicated by the dotted lines 3 in Fig. 5. The member Bhas a similar slot 10 for engagement with the web and a iiattenedconcave-convex head 4 with a iiat circular margin 5. The sides of thisconcaveconveX head are adapted to pass under the lips 2 of member A fromthe broader opening and lto be drawn toward said lips in the direcjSpecification of Letters Patent.

`bers are in the final operative position.

Patented Jan. 30. 1906.

Serial No. 244,861.

tion of the arrow shown in Fig. .5. The lips, as shown in the drawings,are segmental in form and also concavo-convex to conform with thecontour of the concave-convex head 4. It follows from the formation ofthe cooperating parts, as above described, that,

due to the spring of the metal of plate A, said lips 2 are usuallysullicient to maintain said head in engagement therewith when the headis drawn under the same as far as .it is possible to draw it in view ofthe relative convergence of said lips. l p The neck 6, joining the headpart 4 of niember B with the loop part 7, is slightly less in extensionthan the narrower space betweenthe ends of the lips 2.

The margins of lips 2 are in the arcs approximately of the same circlewhich corresponds to the portion of the `sphere formed by the convexedhead 4 of member B. From this construction a cer tain free relativerotative movement is permitted between members A and B while said head 4is held in engagement with the lips 2. It also follows that theproportions of head 4- with its margin 5 and the proportions andpositions of the lips 2 are such that while the head may be readilysprung beneath the lips through the wider opening therebetween it isprevented from being drawn free from the lips in the direction of thearrow. This is be# cause of the more contracted opening between saidlips being insuflicient to permit the head from passing therethrough. Asabove stated, the spring of the plate A and lips 2 is sufficient tomaintain the head 4 in the operative position when it has been snappedbeneath the lips; but it is safer to provide a stop to prevent theaccidental disengagement of said two members, and the special object ofthis invention is to provide such stop, which shall in no way impair thestrength or detract from the appearance of the device, which shall beeflicient,to prevent accidental disengagement, which shall permit therotative movement desirable between suoli two members, and which shallnot interfere with the convenient and sure engagement of one member withthe other when drawing the same from the preliminary to the liiialposition. To this end I provide the stop or projection 8, struck up fromsaid member A and adapted to lie just without the margin 5 of the head 4of member B when said inemplacing the stop or projection S as shown iiithe drawings it will be seen that the strength roo IIO

of the memberAis in no wise impaired. The relative rotative movementbetween members A and B is not interfered with, and the engagementbetween said members is not interfered with, because, as will be seen byan inspection of Figs. l and 3, when the member B is placed over memberA, with the narrow neck 6 lying between the lips 2, the concave portionof head 4 will lie over the proj ection 8. This permits the memberB tolie perfectly flat upon memberA as the same is being drawn into the nalposition of engagement with member A, and the marginr of memb erB willbe drawn sufficiently under the lips 2 before the head is caused to riseas it passes over the projection 8. This serves to prevent theprojection 8 from causing the head to slip over or above the lips 2.After the margin 5 becomes engaged under lips 2 it is obvious that twomembers can be pulled to the final position, no matter what the pressureexerted between the under side of the margin and the projection 8. Thehead once engaged under the lips cannot escape therefrom, and by pullingthe two members to the final position the head snaps over projection 8into place, where it is securely held until sufficient pressure isexerted in the opposite direction to cause the head to spring back overthe projection.

Fig. 5 shows a modification of the form of f stop or projection 8, whileFig. 6 shows such a projection 8 placed upon a resilient tongue 1l,stamped out of the metal plate A. This tongue obviously adds to the easeor facility with which the members may be snapped into the finalposition and disengaged from said final position.

1. In a fastening device, the combination of two interlocking members,one member having a flattened circular concave-convex head, the othermember provided with oppositely-disposed arc-shaped lips, the one symnmetrical with the other, for engaging said head therebetween, and aprojection on the fiat surface of the lip member approximately betweenthe receiving ends of the lips and outside the margin of the head whenin final position, said projection so located as to lie within theconcave portion of the head until the same has been brought intopreliminary engagement with the lips.

2. In a fastening device, the combination of two interlocking members,one member having a flattened circular concave-convex head, the othermember provided with oppositely-disposed convergent arc-shaped lips, theone symmetrical with the other, for engaging said head therebetween, anda proj ection on the flat surface of the lip member approximatelybetween the receiving ends of the lips and outside the margin of thehead when in final position, said projection so located as to lie Withinthe concave portion of the head until the same has been-brought intopreliminary engagement with the lips.

3. In a fastening device, the combination of two interlocking members,one member having a flattened circular concavoconvex head, the othermember provided with oppositely-disposed arc-shaped lips, the onesymmetrical with the other, for engaging said head therebetween, aresilientlymounted projection on the flat surface of the lip memberapproximately between the receiving ends of the lips and outside themargin of the head when in final position, said projection so located asto lie within the concave portion of the head until the same has beenbrought into preliminary engagement with the lips.

FRANK A. FREEMAN.

Witnesses: l

HERBERT C. RUSSELL, HOWARD S. OKIE.

